History may record that the planet’s climate crisis was avoided thanks to the efforts of three countries: China, Germany, and France. Or not. The preparedness of those three, and the other EU member-states, to follow through on commitments under the Paris Accord despite the US pull-out is key to planetary survival. Chancellor Angela Merkel has made no bones about it, announcing that the Europeans are determined, in the name of Western values, to meet the Paris goal of keeping planetary temperature rise to 1.5-2 degrees Celsius while also welcoming immigrants and upholding the global trade system.

The Discouraging News

Every expert opinion on climate change includes a dire warning: We haven’t got much time. The latest warning comes from a group of scientists and supportive others called Mission 2020. Reporting in Nature, they believe that if greenhouse gas emissions can turn downward by 2020—emissions have actually flattened out over the last three years—we have a chance to avoid the worst consequences of climate change. But if the Paris goals cannot be met, we are on the way to catastrophic decline. The group reminds us that economic growth in many countries is occurring precisely where use of non-carbon renewable sources has increased dramatically.

Mission 2020 makes a number of specific, entirely doable suggestions on land-use policy, city structures, transportation, and other subjects. But for its ideas to see the light of day, the group emphasizes that we must “use science to guide decisions and set targets. Policies and actions must be based on robust evidence… Those in power must also stand up for science.” Its closing observation is well worth heeding: “There will always be those who hide their heads in the sand and ignore the global risks of climate change. But there are many more of us committed to overcoming this inertia. Let us stay optimistic and act boldly together.”

But optimism will be hard to sustain, especially for future generations. Two other studies just published in Nature Climate Change cast doubt on reaching the 1.5°C target. In fact, these studies, using very different methodologies, conclude that a rise of 2°C or even 3°C by the end of the century is more likely. And the studies were completed before US withdrawal from the Paris Accord. Bill McKibben writes: “”These studies are part of the emerging scientific understanding that we’re in even hotter water than we’d thought. We’re a long ways down the path to disastrous global warming, and the policy response—especially in the United States—has been pathetically underwhelming.”

Indeed, under Donald Trump, the US is contributing mightily to our self-destruction. Deep cuts in the EPA budget; appointments to the environment and energy cabinet posts of dogmatic amateurs; restrictions on scientists’ professional activities, climate-change research, and the climate data base; the purely politically-motivated efforts to salvage the dying coal industry; official obliviousness to Antarctica’s breakup; unabashed promotion of oil and gas industry fracking and other dangerous ventures; systematic elimination of environmental protection regulations—it’s an extraordinary list that future historians will point to as evidence of a bizarre suicidal urge in a certain segment of American society.

It will come as no surprise that a Pew Research Center poll based on opinion in five countries (France, Britain, Spain, Poland, and Germany) finds a major shift in attitudes about the US. Whereas in 2016 favorable opinion of the US in these countries averaged 61 percent to 26 percent unfavorable, now unfavorable opinion is at 52 percent and 46 percent is favorable. Pew did international polling on the US under Trump in more than 30 other countries, and found very little confidence in his leadership—“arrogant, intolerant, and dangerous” were the decisive assessments—a sharp departure from polling when Obama was president. Trump’s Paris decision, along with his Muslim ban and his intention to build a wall on the Mexico border, clearly affected these opinions of him.

Some More Encouraging News

But if crisis breeds opportunity, the failure of US leadership on climate change may be fracturing the old international order in a positive way. While American politicians may still believe the US is destined to lead or is (in Madeleine Albright’s famous phrase) the “indispensable nation,” the rest of the world is moving on. And that’s not necessarily a bad thing that others step forward to fill the leadership gap. As Merkel has said: “The times in which we could completely rely on others are over to a certain extent. That is what I experienced in the last few days. That is why I can only say: We Europeans must really take our fate into our own hands.” Canada’s foreign minister, Chrystia Freeland, added that since the new US administration “has come to question the very worth of its mantle of global leadership,” Canadians must “set our own clear and sovereign course.”

Trump’s transactional approach to international affairs, under which “the deal” must always advantage America first, will be shown to be bankrupt soon enough. The Europeans, the Chinese, and others—including major US cities, states, businesses, and institutions that will make their own deals on the environment, and will benefit as a result in terms of energy savings, cleaner air, employment opportunities, and technological advances. California’s governor Jerry Brown and New York City’s former mayor, Michael Bloomberg, lead a group called America’s Pledge that has a formidable and growing membership committed to working with the UN to reduce greenhouse emissions. The group now numbers 227 cities and counties, nine states, and more than 1600 businesses and investors.

So long as Trump is in power, however, we and the planet are going to pay a high price. US reliability will become increasingly uncertain on issues aside from climate change. After all, if the US can suddenly pull out of major international commitments such as the Paris accord and the Trans-Pacific Partnership, and raises doubts about its participation in NATO, how credible will its word be on arms control, immigration, and humanitarian aid? Moreover, without US support, dealing with climate change will be that much more difficult. And for Americans, the evisceration of the EPA will have real consequences, starting with public health.